Display screen or portion thereof with transitional graphical user interface



FIG. 1 is the first image in a sequence for a display screen or portion thereof with transitional graphical user interface showing our new design;

FIG. 2 is the second image thereof;

FIG. 3 is the third image thereof;

FIG. 4 is the fourth image thereof;

FIG. 5 is the fifth image thereof;

FIG. 6 is the sixth image thereof;

FIG. 7 is the seventh image thereof;

FIG. 8 is an enlarged view of the claimed region of the display screen or portion thereof with transitional graphical user interface shown in FIG. 1;

FIG. 9 is an enlarged view of the claimed region of the display screen or portion thereof with transitional graphical user interface shown in FIG. 2;

FIG. 10 is an enlarged view of the claimed region of the display screen or portion thereof with transitional graphical user interface shown in FIG. 3;

FIG. 11 is an enlarged view of the claimed region of the display screen or portion thereof with transitional graphical user interface shown in FIG. 4;

FIG. 12 is an enlarged view of the claimed region of the display screen or portion thereof with transitional graphical user interface shown in FIG. 5;

FIG. 13 is an enlarged view of the claimed region of the display screen or portion thereof with transitional graphical user interface shown in FIG. 6; and,

FIG. 14 is an enlarged view of the claimed region of the display screen or portion thereof with transitional graphical user interface shown in FIG. 7.

In the drawings, the broken lines show a display screen or portion thereof with transitional graphical user interface and form no part of the claimed design. In FIGS. 8-14 the dot-dash lines represent the boundaries of the claimed design.

The appearance of the display screen or portion thereof with transitional graphical user interface sequentially transitions between the images shown in FIGS. 1-7 and in FIGS. 8-14. The process or period in which one image transitions to another forms no part of the claimed design. 

CLAIM We claim the ornamental design for a display screen or portion thereof with transitional graphical user interface, as shown and described. 